when i connect my pc to the tv with vga cable, it works perfectly fine. however, when i connect it with DVI to HDMI cable, it starts lagging on both the pc monitor and the tv. it's wierd because it dousnt matter which resolution and prefernces i try, i cant resolve the problam. by the way, the sound doues not lag, only the graphics. anyone has an idea how to resolve this wihtout giving up on the hdmi quality??